The Grand Canyon Caverns is located along Route 66 in Northern Arizona. These are the largest dry caverns in the United States, located 200 to 300 feet below the surface, and accessible via our exploration elevator. Located in the middle of 3,000,000 acres of the most unspoiled land left in the world, we offer clean air, clear skies, open prairies, and a refreshing change of scenery from the urban world. We feature cavern tours that are easily accessible along paved walkways with handrails and for the more adventurous, off-path ‘Explorers Tours’.